git.sur5r.net Git - u-boot/blob - arch/x86/cpu/qemu/acpi.c

   1 /*
   2  * Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com>
   3  *
   4  * SPDX-License-Identifier:   GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/acpi_table.h>
   9 #include <asm/ioapic.h>
  10 #include <asm/tables.h>
  11
  12 void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
  13                       void *dsdt)
  14 {
  15         acpi_header_t *header = &(fadt->header);
  16         u16 pmbase;
  17
  18         pci_dev_t bdf = PCI_BDF(0, 0x1f, 0);
  19         pci_read_config_word(bdf, 0x40, &pmbase);
  20
  21         /*
  22          * TODO(saket.sinha89@gmail.com): wrong value
  23          * of pmbase by above function. Hard-coding it to
  24          * correct value. Since no PCI register is
  25          * programmed Power Management Interface is
  26          * not working
  27          */
  28         pmbase = 0x0600;
  29
  30         memset((void *)fadt, 0, sizeof(struct acpi_fadt));
  31         memcpy(header->signature, "FACP", 4);
  32         header->length = sizeof(struct acpi_fadt);
  33         header->revision = 3;
  34         memcpy(header->oem_id, OEM_ID, 6);
  35         memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
  36         memcpy(header->asl_compiler_id, ASLC, 4);
  37         header->asl_compiler_revision = 0;
  38
  39         fadt->firmware_ctrl = (unsigned long) facs;
  40         fadt->dsdt = (unsigned long) dsdt;
  41         fadt->model = 0x00;
  42         fadt->preferred_pm_profile = PM_MOBILE;
  43         fadt->sci_int = 0x9;
  44         fadt->smi_cmd = 0;
  45         fadt->acpi_enable = 0;
  46         fadt->acpi_disable = 0;
  47         fadt->s4bios_req = 0x0;
  48         fadt->pstate_cnt = 0;
  49         fadt->pm1a_evt_blk = pmbase;
  50         fadt->pm1b_evt_blk = 0x0;
  51         fadt->pm1a_cnt_blk = pmbase + 0x4;
  52         fadt->pm1b_cnt_blk = 0x0;
  53         fadt->pm2_cnt_blk = pmbase + 0x50;
  54         fadt->pm_tmr_blk = pmbase + 0x8;
  55         fadt->gpe0_blk = pmbase + 0x20;
  56         fadt->gpe1_blk = 0;
  57         fadt->pm1_evt_len = 4;
  58         /*
  59          * Upper word is reserved and
  60          * Linux complains about 32 bit
  61          */
  62         fadt->pm1_cnt_len = 2;
  63         fadt->pm2_cnt_len = 1;
  64         fadt->pm_tmr_len = 4;
  65         fadt->gpe0_blk_len = 16;
  66         fadt->gpe1_blk_len = 0;
  67         fadt->gpe1_base = 0;
  68         fadt->cst_cnt = 0;
  69         fadt->p_lvl2_lat = 1;
  70         fadt->p_lvl3_lat = 0x39;
  71         fadt->flush_size = 0;
  72         fadt->flush_stride = 0;
  73         fadt->duty_offset = 1;
  74         fadt->duty_width = 3;
  75         fadt->day_alrm = 0xd;
  76         fadt->mon_alrm = 0x00;
  77         fadt->century = 0x32;
  78         fadt->iapc_boot_arch = 0x00;
  79         fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
  80                         ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE |
  81                         ACPI_FADT_DOCKING_SUPPORTED | ACPI_FADT_RESET_REGISTER |
  82                         ACPI_FADT_PLATFORM_CLOCK;
  83         fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
  84         fadt->reset_reg.bit_width = 8;
  85         fadt->reset_reg.bit_offset = 0;
  86         fadt->reset_reg.resv = 0;
  87         fadt->reset_reg.addrl = 0xcf9;
  88         fadt->reset_reg.addrh = 0;
  89         fadt->reset_value = 0x06;
  90         /*
  91          * Set X_FIRMWARE_CTRL only if FACS is
  92          * above 4GB. If X_FIRMWARE_CTRL is set,
  93          * then FIRMWARE_CTRL must be zero
  94          */
  95         fadt->x_firmware_ctl_l = 0;
  96         fadt->x_firmware_ctl_h = 0;
  97         fadt->x_dsdt_l = (unsigned long)dsdt;
  98         fadt->x_dsdt_h = 0;
  99         fadt->x_pm1a_evt_blk.space_id = 1;
 100         fadt->x_pm1a_evt_blk.bit_width = 32;
 101         fadt->x_pm1a_evt_blk.bit_offset = 0;
 102         fadt->x_pm1a_evt_blk.resv = 0;
 103         fadt->x_pm1a_evt_blk.addrl = pmbase;
 104         fadt->x_pm1a_evt_blk.addrh = 0x0;
 105         fadt->x_pm1b_evt_blk.space_id = 0;
 106         fadt->x_pm1b_evt_blk.bit_width = 0;
 107         fadt->x_pm1b_evt_blk.bit_offset = 0;
 108         fadt->x_pm1b_evt_blk.resv = 0;
 109         fadt->x_pm1b_evt_blk.addrl = 0x0;
 110         fadt->x_pm1b_evt_blk.addrh = 0x0;
 111         fadt->x_pm1a_cnt_blk.space_id = 1;
 112         /*
 113          * Upper word is reserved and
 114          * Linux complains about 32 bit
 115          */
 116         fadt->x_pm1a_cnt_blk.bit_width = 16;
 117         fadt->x_pm1a_cnt_blk.bit_offset = 0;
 118         fadt->x_pm1a_cnt_blk.resv = 0;
 119         fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
 120         fadt->x_pm1a_cnt_blk.addrh = 0x0;
 121         fadt->x_pm1b_cnt_blk.space_id = 0;
 122         fadt->x_pm1b_cnt_blk.bit_width = 0;
 123         fadt->x_pm1b_cnt_blk.bit_offset = 0;
 124         fadt->x_pm1b_cnt_blk.resv = 0;
 125         fadt->x_pm1b_cnt_blk.addrl = 0x0;
 126         fadt->x_pm1b_cnt_blk.addrh = 0x0;
 127         fadt->x_pm2_cnt_blk.space_id = 1;
 128         fadt->x_pm2_cnt_blk.bit_width = 8;
 129         fadt->x_pm2_cnt_blk.bit_offset = 0;
 130         fadt->x_pm2_cnt_blk.resv = 0;
 131         fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
 132         fadt->x_pm2_cnt_blk.addrh = 0x0;
 133         fadt->x_pm_tmr_blk.space_id = 1;
 134         fadt->x_pm_tmr_blk.bit_width = 32;
 135         fadt->x_pm_tmr_blk.bit_offset = 0;
 136         fadt->x_pm_tmr_blk.resv = 0;
 137         fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
 138         fadt->x_pm_tmr_blk.addrh = 0x0;
 139         fadt->x_gpe0_blk.space_id = 1;
 140         fadt->x_gpe0_blk.bit_width = 128;
 141         fadt->x_gpe0_blk.bit_offset = 0;
 142         fadt->x_gpe0_blk.resv = 0;
 143         fadt->x_gpe0_blk.addrl = pmbase + 0x20;
 144         fadt->x_gpe0_blk.addrh = 0x0;
 145         fadt->x_gpe1_blk.space_id = 0;
 146         fadt->x_gpe1_blk.bit_width = 0;
 147         fadt->x_gpe1_blk.bit_offset = 0;
 148         fadt->x_gpe1_blk.resv = 0;
 149         fadt->x_gpe1_blk.addrl = 0x0;
 150         fadt->x_gpe1_blk.addrh = 0x0;
 151
 152         header->checksum = table_compute_checksum((void *)fadt, header->length);
 153 }
 154
 155 unsigned long acpi_fill_madt(unsigned long current)
 156 {
 157         /* create all subtables for processors */
 158         current = acpi_create_madt_lapics(current);
 159
 160         /*
 161          * TODO(saket.sinha89@gmail.com): get these
 162          * IRQ values from device tree
 163          */
 164         current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
 165                                            2, IO_APIC_ADDR, 0);
 166         current += acpi_create_madt_irqoverride(
 167                 (struct acpi_madt_irqoverride *)current, 0, 0, 2, 0);
 168         current += acpi_create_madt_irqoverride(
 169                 (struct acpi_madt_irqoverride *)current, 0, 9, 9, 0xd);
 170         current += acpi_create_madt_irqoverride(
 171                 (struct acpi_madt_irqoverride *)current, 0, 0xd, 0xd, 0xd);
 172         acpi_create_madt_lapic_nmi(
 173                 (struct acpi_madt_lapic_nmi *)current, 0, 0, 0);
 174
 175         return current;
 176 }